The 25 most popular tourist sites in the US

This isn't one of them, but Americans generally seem to visit some weird landmarks. Getty Images/John Moore You'd be forgiven for thinking that the most popular tourist sites in the US are, say, the Empire State Building and the Golden Gate Bridge.

But according to Swarm, Foursquare's check-in app, Americans have much more eclectic taste when exploring their backyard.

Using Swarm check-in data from August 1, 2015, to July 31, we determined the 25 most visited monuments and landmarks in the US.

From the world's largest thermometer to mere signage, here's what Foursquare users are seeking out.